Layout modifiers:

Apply on Button to stretch it the whole width of the column. Apply it on Photo module to stretch the small image the full width of the column. Apply it on an element containing a form and the form fields will be stretched to the column width.

Navigation classes:

button

Apply this class on a navigation menu item. Example can be seen in the website header. (You will need to enable menu item classes in Screen Options in your WordPress admin beforehand, probably.)

Other styles:

inline

Apply on list widget (page builder module). Or wrap a list in DIV.inline to display the list items inline instead of each list item on a new line.